THE DISTRIBUTION OF CONCRETE STRAINS IN THE SPLIT CYLINDER TEST

THE SPLIT CYLINDER TEST, ASTM METHOD C 496, IS USED CURRENTLY TO SERVE AS A MEASURE OF THE TENSILE STRENGTH OF CONCRETE. AN ELASTIC FORMULA IS USED IN THIS METHOD TO DETERMINE THE CONCRETE STRENGTH BASED ON THE SPLITTING LOAD. HOWEVER, SINCE CONCRETE IS NONELASTIC, ESPECIALLY CLOSE TO THE FAILURE LOAD, A THEORETICAL AND EXPERIMENTAL INVESTIGATION OF THE MAGNITUDE AND DISTRIBUTION OF THE HORIZONTAL STRAINS ON THE FACE OF A SPLIT CYLINDER TEST HAS BEEN PERFORMED. IT WAS NECESSARY TO USE A STRAIN-REGULATED SCREW-TYPE TESTING MACHINE TO OBSERVE THE BEHAVIOR OF THE MATERIAL CLOSE TO ITS ULTIMATE FAILURE LOAD. ACCESSORY TESTS WERE PERFORMED TO DETERMINE THE MATERIAL STRESS-STRAIN CURVES AND POISSON'S RATIO FOR USE IN THE THEORETICAL STUDY. IT WAS FOUND THAT VERY LARGE NONELASTIC DEFORMATIONS OCCURRED BEFORE FINAL FAILURE BY SPLITTING, HORIZONTAL STRAIN OVER THE FACE HAD MAXIMUM VALUES AT ONE OR TWO POINTS, STRAINS WERE LARGEST AT THE VERTICAL DIAMETER AND RAPIDLY DECREASED TO EACH SIDE OF THAT DIAMETER, AND TRUE TENSILE STRENGTH APPEARED TO BE SMALLER THAN ELASTICALLY DETERMINED TENSILE STRENGTH. /AUTHOR/

• Supplemental Notes:
  • Vol 4, No 2, PP 393-407
• Authors:
  • Pincus, G
  • De Carvalho, F G
• Publication Date: 1969-6

Media Info

• Serial:
  • Journal of Materials
  • Publisher: American Society for Testing and Materials (ASTM)

Subject/Index Terms

• TRT Terms: Concrete; Concrete tests; Deformation; Deformation curve; Failure; Formulas; Loads; Poisson ratio; Splitting (Communications); Strain (Mechanics); Tensile strength
• Uncontrolled Terms: Cylinders
• Old TRIS Terms: Poissons ratio; Splitting; Strains
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00213394
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 29 1994 12:00AM